کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7152135 | 1462371 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Band gap and double-negative properties of a star-structured sonic metamaterial
ترجمه فارسی عنوان
باند شکاف و خواص دوگانه یک متامیک صوتی ساختار ستاره
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کلمات کلیدی
مواد معدنی صوتی، پارامتر متوسط موثر، دوگانه منفی تک فاز، ساختار ستاره ای،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
چکیده انگلیسی
Sonic metamaterials have a wide range of applications in wave control and super-resolution imaging, and are favored for their several unique and advantageous properties. However, current double-negative sonic metamaterials have complex structures composed of various materials, which limits their design and application. Thus, we must produce double-negative features using a simple structure of one material. Because of their unique concave configurations and various resonances, star-shaped structures readily form band gaps and show superior material properties. In this study, we designed and simulated star-shaped single-phase metamaterials, considered ideal structures. Our numerical results suggest that these metamaterials have two band gaps as well as double-negative properties over specific frequency ranges. Moreover, we investigated how their band gap and double-negative properties depended on the concave angle.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Acoustics - Volume 139, October 2018, Pages 235-242
Journal: Applied Acoustics - Volume 139, October 2018, Pages 235-242
نویسندگان
Meng Chen, Wenshuai Xu, Yu Liu, Kuo Yan, Heng Jiang, Yuren Wang,